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Intersubband transitions in quantum well heterostructures with delta‐doped barriers
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11.The barrier height and effective mass depend on y, the fraction of Al in the layer of AlGaAs forming the barrier. The number of monolayers of AlGaAs and GaAs define the widths of the barrier and well, respectively. The barrier height is calculated by the formula and effective mass by where is the mass of the bare electron. These formulas are given in detail in a phenomenological study by H. J. Lee, L. Y. Juravel, J. C. Woolley, and A. J. SpringThorpe, Phys. Rev. B 21, 659 (1980).
12.The total probabilities of the electrons in both barriers together for each of the first four states are 0.036, 0.503, 0.98, and 0.611 for a ‐potential strength, whereas these probabilities for the first three states of an undoped structure are 0.031, 0.137, and 0.556. Since the fourth state becomes stationary at a ‐potential strength, the probability at that strength for the fourth in is 0.889.
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